Abstract: The invention provides a method of adding ozone to a solvent in a dry cleaning machine into the solvent line at the point where the solvent is leaving the solvent pump. The recirculated solvent in the dryer is furnished with ozone from an ozone generator for providing bacticidal and fungicidal effects. The present invention renders the dry cleaning procedures employed into more sanitary processes. The addition of ozone to the cleaning solvent prevents the establishment of bacteria or fungi colonies in a dry cleaning machine.

Abstract: The invention relates to an apparatus for separating water-containing solvent mixtures having two or more phases, using one or two gravitational separators (4, 16) and to the use of this apparatus, and also to a process for separating water-containing solvent mixtures having two or more phases. Using the novel apparatus it is possible to separate even small-density-difference solvent mixtures having two or more phases. To this end, a coalescence separator (1) has been provided upstream of the first gravitational separator (4).

Abstract: The invention relates to a method of dry cleaning textiles which are washed with solvent and dried by hot air, the solvent being recovered after condensation, the invention being characterised in that the solvent concentration is measured at the point where it is highest and temperature is measured, both being measured continuously throughout the whole of the drying process and the values are processed in a computer, and the concentration in the supply of hot air is controlled as a function of the relationship of concentration, acting as the pilot value, to temperature along a characteristic.

Abstract: The invention relates to an apparatus for cleaning textiles by means of FCHC-free solvents on a benzine basis, comprising a cleaning machine, distillation section, recovery section and drier, and is characterized by a means for injecting protective gas into the drier.